 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.externaltools.internal.program.launchConfigurations;


 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.externaltools.internal.launchConfigurations.ExternalToolsMainTab;
 import org.eclipse.ui.externaltools.internal.model.IExternalToolsHelpContextIds;
 import org.eclipse.ui.externaltools.internal.ui.FileSelectionDialog;

 public class ProgramMainTab extends ExternalToolsMainTab {

     /**
      * Prompts the user for a program location within the workspace and sets the
      * location as a String containing the workspace_loc variable or
      * <code>null</code> if no location was obtained from the user.
      */
     protected void handleWorkspaceLocationButtonSelected() {
         FileSelectionDialog dialog;
         dialog = new FileSelectionDialog(getShell(), ResourcesPlugin.getWorkspace().getRoot(), ExternalToolsProgramMessages.ProgramMainTab_Select);
         dialog.open();
         IStructuredSelection result = dialog.getResult();
         if (result == null) {
             return;
         }
         Object file= result.getFirstElement();
         if (file instanceof IFile) {
             StringBuffer expression = new StringBuffer ();
             expression.append("${workspace_loc:"); //$NON-NLS-1$
 expression.append(((IFile)file).getFullPath().toString());
             expression.append("}"); //$NON-NLS-1$
 locationField.setText(expression.toString());
         }
     }
     
     
     /* (non-Javadoc)
      * @see org.eclipse.debug.ui.ILaunchConfigurationTab#createControl(org.eclipse.swt.widgets.Composite)
      */
     public void createControl(Composite parent) {
         super.createControl(parent);
         PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), IExternalToolsHelpContextIds.EXTERNAL_TOOLS_LAUNCH_CONFIGURATION_DIALOG_PROGRAM_MAIN_TAB);
     }
 }

